Gear casing



Fig. 1.1 is a top view of a gear casing;

Fig. 1.2 is a left elevation view thereof;

Fig. 1.3 and Fig. 1.4 are right perspective views;

Fig. 1.5 is a front elevation view;

Fig. 1.6 is a rear elevation view; and

Fig. 1.7 is right elevation view. 

CLAIM I claim the ornamental design of a gear casing, as shown and described. 